Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.

This 44 mm chronograph model is crafted from 18K Sedna™ gold and includes a laser-ablated black ceramic bezel ring with a polished diving scale. The pushers are also polished black ceramic, as well as the dial, which features laser-engraved waves in a positive relief and a date window at 6 o’clock.

The subdial rings and hands are in 18K Sedna™ gold, while the central hands and indexes are 18K Sedna™ gold and filled with white Super-LumiNova.

The watch is presented on a rubber strap and is driven by the OMEGA Master Chronometer Calibre 9901, which can be seen through the sapphire-crystal on the wave-edged caseback.


MOVEMENT
Calibre: Omega 9901 Self-winding chronograph with column wheel and CoAxial escapement.
Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Silicon balance-spring, 2 barrels mounted in series, time zone function. Central hour, minute and chronograph seconds hands, small seconds hand, 12-hour and 60-minute recorders. 18K Sedna™ gold rotor and balance bridge with Geneva waves in arabesque.
Power reserve: 60 hours

CRYSTAL
Domed scratch-resistant sapphire crystal with antireflective treatment on both sides

WATER RESISTANCE
30 bar (300 metres / 1000 feet)

WATCH CASE & DIAL
Case: Sedna™ gold
Case Diameter: 44 mm
Between lugs: 21 mm
Dial Colour: Black

BRACELET
Material: Rubber strap
Strap color: Black
Buckle type: Pin buckle
Buckle material: Sedna® Gold

FEATURES
Anti-magnetic, chronograph, chronometer, date, master chronometer certified, helium escape valve, screw-in crown, small seconds, transparent caseback, unidirectional rotating bezel, time zone function